The singer and the "Mamma Mia!" star are set to join Hugh Jackman, Russell Crowe, Sacha Baron Cohen, Anne Hathaway, Eddie Redmayne and Helena Bonham Carter in the much-anticipated film musical, which is scheduled to start shooting this spring.

Theatre news website BroadwayWorld.com has confirmed that Swift is in negotiations to play Eponine and Seyfried is slated to play Cosette in the project.